From left to right, Cassie Malloy, 20, aka "Cass Kicker," Desiree Obregon, aka "DeZire On Fire" and Dejana Nikolic, 21, far right, aka "PrincessBubbleScum," execute a drill by Robin Lowes, aka "Stinkerbell," during a Derby Cats practice at an outdoor rink at Catalina Magnet High School. Photo by: Mamta Popat / Arizona Daily Star Photo taken on Wednesday April 9, 2014

Mamta Popat / Arizona Daily Star

Arizona and Arizona State have been playing each other in one sport or another for 120 years. Saturday’s showdown is sure to set a record for ugliest hits. 

The UA’s Derby Cats will take on ASU’s Derby Devils Saturday in what’s being billed as the Western United States’ first college roller derby bout. The competition will be held at the Tucson Indoor Sports Center, 1065 W. Grant Road; tickets are $10 in advance and $13 at the gate. Roller derby isn’t your average college sport: Saturday’s matchup will feature a bar, food service and a performance by The Erudites, a Tucson-based band. (Get tickets here

The Derby Cats were founded in 2012 by Samantha “Carnage Asada” Campas, a creative writing senior and roller derby enthusiast. She serves as the team’s manager, event planner and — when necessary — referee. The team is co-ed, but can play all-women’s matches, too. The Derby Cats and Derby Devils faced each other last month in an exhibition, but ASU — aided by alumni playing on local club teams — beat the UA team, 261-102.